Ebt hewitt



JOHNA WAHEWITT `AND ROBERT HE'WlTT, or ALLEGHENYCITY, PENNSYLVANIA. *f r f Leners Meer No. 89,865, dated Ma/y 11,1869.

nurnovmmnr ne LmanmA'ron i 4 The Schedule referred `tot!! iliese Letters Pntem and making parl: of the same. l

n I l w contained in the main reservoir, which has to be ex pelled before the oil can dow easily downwards. The mode of operating with our devices is as fol- Toali 'whom ztlmay concern! I j Beit known that we, JOHN W. Hnwlr'r andRoB- -ERTHEWITL of Allegheny City, in the county of Allegheny, and StateV of Pennsylvania, have invented certain new and useful Improvements iu Oil-Oups; and we do hereby declare that the following is a full, clear, and exact description thereof, referenceY being 4had to the accompanying drawings, and to the letters of reference marked thereon, whichform a part of this specication. i

Our invention relates to improvements in that class of oilor grease-cups,` used for lubricating steam-cylinders, or such like devices, under a pressure of steam. To enable othersskilled in the art to make and use our devices, we will ,proceed to describe their construction vand operation. In the accompanying drawings-` l c Figure 1 is a vertical section of our improvement in oil-cups.

. Like letters of .reference denote corresponding parts. The nature'of' our invention consists in providing an .ordinary plug, A, which has a basin, A, at its upper extremity, with a passage down its centre, A2, and

an elbow-turn and aperture', As, near its base.

On the opposite side ofthe plug A, we provide za slot or crevice, A, by also providing a lid or cover, B, of any suitable construction, which has two apertures, B and" B,r1ght in a line, and opposite to eachother, and so arranged that the aperture Asof theplug-A, will be opposite the aperture B of the llid B, and the crevice A4 be opposite the aperture| B2 of the` lid B, which screws, in any suitable manner, into a reservoir, G, of ordinary construction, which is part and above a cock or faucet, C, of ordinaryconstruction, having a passage, O2, running down verticallyand a plug, C3, hav-` ing anaperture,` O, corresponding to the passage Oi g of the cock O. i

Diiiculty hasbeen hitherto found in lubricating `with the ordinary oil-cupsin consequence of air beingl lows, viz:

By closing the plug O3 ofthe cock O, so that it will y shut oii communication with the reservoir C, by means ofthe passage O, and `oil being placed iu the basin A1, by pulling the plug A around one-quarter turn to the rglit hand, the air vcontained in reservoir O will pass f out by means of the aperture B of the lid B, and crev- `ice A* ofthe plug;v and atkthe same time, and Aby the same operation, the oil will flow, from basin A, down.v passage A, through apertures A3 and B, into the res-` ervoir C. Then, by operating the plug A reversely', and opening theplug O3 of the cock O, theroilows,

through the passages ()2 and 0,4', into the placerequired, Y

As hitherto oil-cupshave been constructed, a supf plementary cock has been' attached to the reservoir, which has to be opened prior to manipulating the oilcock. Byyour devices, both the oil is let in, and the air expelled bythe same device, and at the same op eration, saving both time and` labor.

Having thus described the nature, construction, and operation of our improvements in oil-cups,

What'we claim as new, and desire to secure by LettersPatent, is-` i The arrangement of ,the plug A with the passage A2, aperture A3, and crevice A, lid B, and apertures ,i

B andB, with the reservoir C, cock O,`and`plug C3, when constructed, combined,arrauged, and operating substantially as herein described, and for the purpose set forth. f

we afx our signatures, in presence of two witnesses.

JOHN W. HEWITT.

. ROBERT HEWI'LT.4

Witnesses: l t

PERoEvAn'BEcKErr, J 01m P. CLARK.' 

